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-rw-r--r--crates/ra_hir/src/function/scope.rs368
1 files changed, 178 insertions, 190 deletions
diff --git a/crates/ra_hir/src/function/scope.rs b/crates/ra_hir/src/function/scope.rs
index 42bfe4f32..0607a99cb 100644
--- a/crates/ra_hir/src/function/scope.rs
+++ b/crates/ra_hir/src/function/scope.rs
@@ -1,14 +1,16 @@
1use std::sync::Arc;
2
1use rustc_hash::{FxHashMap, FxHashSet}; 3use rustc_hash::{FxHashMap, FxHashSet};
2 4
3use ra_syntax::{ 5use ra_syntax::{
4 AstNode, SyntaxNodeRef, TextUnit, TextRange, 6 AstNode, SyntaxNodeRef, TextUnit, TextRange,
5 algo::generate, 7 algo::generate,
6 ast::{self, ArgListOwner, LoopBodyOwner, NameOwner}, 8 ast,
7}; 9};
8use ra_arena::{Arena, RawId, impl_arena_id}; 10use ra_arena::{Arena, RawId, impl_arena_id};
9use ra_db::LocalSyntaxPtr; 11use ra_db::LocalSyntaxPtr;
10 12
11use crate::{Name, AsName}; 13use crate::{Name, AsName, expr::{PatId, ExprId, Pat, Expr, Body, Statement, BodySyntaxMapping}};
12 14
13#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)] 15#[derive(Debug, Clone, Copy, PartialEq, Eq, PartialOrd, Ord, Hash)]
14pub struct ScopeId(RawId); 16pub struct ScopeId(RawId);
@@ -16,15 +18,15 @@ impl_arena_id!(ScopeId);
16 18
17#[derive(Debug, PartialEq, Eq)] 19#[derive(Debug, PartialEq, Eq)]
18pub struct FnScopes { 20pub struct FnScopes {
19 pub self_param: Option<LocalSyntaxPtr>, 21 body: Arc<Body>,
20 scopes: Arena<ScopeId, ScopeData>, 22 scopes: Arena<ScopeId, ScopeData>,
21 scope_for: FxHashMap<LocalSyntaxPtr, ScopeId>, 23 scope_for: FxHashMap<ExprId, ScopeId>,
22} 24}
23 25
24#[derive(Debug, PartialEq, Eq)] 26#[derive(Debug, PartialEq, Eq)]
25pub struct ScopeEntry { 27pub struct ScopeEntry {
26 name: Name, 28 name: Name,
27 ptr: LocalSyntaxPtr, 29 pat: PatId,
28} 30}
29 31
30#[derive(Debug, PartialEq, Eq)] 32#[derive(Debug, PartialEq, Eq)]
@@ -34,28 +36,101 @@ pub struct ScopeData {
34} 36}
35 37
36impl FnScopes { 38impl FnScopes {
37 pub(crate) fn new(fn_def: ast::FnDef) -> FnScopes { 39 pub(crate) fn new(body: Arc<Body>) -> FnScopes {
38 let mut scopes = FnScopes { 40 let mut scopes = FnScopes {
39 self_param: fn_def 41 body: body.clone(),
40 .param_list()
41 .and_then(|it| it.self_param())
42 .map(|it| LocalSyntaxPtr::new(it.syntax())),
43 scopes: Arena::default(), 42 scopes: Arena::default(),
44 scope_for: FxHashMap::default(), 43 scope_for: FxHashMap::default(),
45 }; 44 };
46 let root = scopes.root_scope(); 45 let root = scopes.root_scope();
47 scopes.add_params_bindings(root, fn_def.param_list()); 46 scopes.add_params_bindings(root, body.args());
48 if let Some(body) = fn_def.body() { 47 compute_expr_scopes(body.body_expr(), &body, &mut scopes, root);
49 compute_block_scopes(body, &mut scopes, root)
50 }
51 scopes 48 scopes
52 } 49 }
53 pub fn entries(&self, scope: ScopeId) -> &[ScopeEntry] { 50 pub fn entries(&self, scope: ScopeId) -> &[ScopeEntry] {
54 &self.scopes[scope].entries 51 &self.scopes[scope].entries
55 } 52 }
53 pub fn scope_chain_for<'a>(&'a self, expr: ExprId) -> impl Iterator<Item = ScopeId> + 'a {
54 generate(self.scope_for(expr), move |&scope| {
55 self.scopes[scope].parent
56 })
57 }
58
59 pub fn resolve_local_name<'a>(
60 &'a self,
61 context_expr: ExprId,
62 name: Name,
63 ) -> Option<&'a ScopeEntry> {
64 let mut shadowed = FxHashSet::default();
65 let ret = self
66 .scope_chain_for(context_expr)
67 .flat_map(|scope| self.entries(scope).iter())
68 .filter(|entry| shadowed.insert(entry.name()))
69 .filter(|entry| entry.name() == &name)
70 .nth(0);
71 ret
72 }
73
74 fn root_scope(&mut self) -> ScopeId {
75 self.scopes.alloc(ScopeData {
76 parent: None,
77 entries: vec![],
78 })
79 }
80 fn new_scope(&mut self, parent: ScopeId) -> ScopeId {
81 self.scopes.alloc(ScopeData {
82 parent: Some(parent),
83 entries: vec![],
84 })
85 }
86 fn add_bindings(&mut self, body: &Body, scope: ScopeId, pat: PatId) {
87 match body.pat(pat) {
88 Pat::Bind { name } => self.scopes[scope].entries.push(ScopeEntry {
89 name: name.clone(),
90 pat,
91 }),
92 p => p.walk_child_pats(|pat| self.add_bindings(body, scope, pat)),
93 }
94 }
95 fn add_params_bindings(&mut self, scope: ScopeId, params: &[PatId]) {
96 let body = Arc::clone(&self.body);
97 params
98 .into_iter()
99 .for_each(|it| self.add_bindings(&body, scope, *it));
100 }
101 fn set_scope(&mut self, node: ExprId, scope: ScopeId) {
102 self.scope_for.insert(node, scope);
103 }
104 fn scope_for(&self, expr: ExprId) -> Option<ScopeId> {
105 self.scope_for.get(&expr).map(|&scope| scope)
106 }
107}
108
109#[derive(Debug, Clone, PartialEq, Eq)]
110pub struct ScopesWithSyntaxMapping {
111 pub syntax_mapping: Arc<BodySyntaxMapping>,
112 pub scopes: Arc<FnScopes>,
113}
114
115#[derive(Debug, Clone, PartialEq, Eq)]
116pub struct ScopeEntryWithSyntax {
117 name: Name,
118 ptr: LocalSyntaxPtr,
119}
120
121impl ScopeEntryWithSyntax {
122 pub fn name(&self) -> &Name {
123 &self.name
124 }
125 pub fn ptr(&self) -> LocalSyntaxPtr {
126 self.ptr
127 }
128}
129
130impl ScopesWithSyntaxMapping {
56 pub fn scope_chain<'a>(&'a self, node: SyntaxNodeRef) -> impl Iterator<Item = ScopeId> + 'a { 131 pub fn scope_chain<'a>(&'a self, node: SyntaxNodeRef) -> impl Iterator<Item = ScopeId> + 'a {
57 generate(self.scope_for(node), move |&scope| { 132 generate(self.scope_for(node), move |&scope| {
58 self.scopes[scope].parent 133 self.scopes.scopes[scope].parent
59 }) 134 })
60 } 135 }
61 pub fn scope_chain_for_offset<'a>( 136 pub fn scope_chain_for_offset<'a>(
@@ -63,26 +138,30 @@ impl FnScopes {
63 offset: TextUnit, 138 offset: TextUnit,
64 ) -> impl Iterator<Item = ScopeId> + 'a { 139 ) -> impl Iterator<Item = ScopeId> + 'a {
65 let scope = self 140 let scope = self
141 .scopes
66 .scope_for 142 .scope_for
67 .iter() 143 .iter()
68 // find containin scope 144 .filter_map(|(id, scope)| Some((self.syntax_mapping.expr_syntax(*id)?, scope)))
145 // find containing scope
69 .min_by_key(|(ptr, _scope)| { 146 .min_by_key(|(ptr, _scope)| {
70 ( 147 (
71 !(ptr.range().start() <= offset && offset <= ptr.range().end()), 148 !(ptr.range().start() <= offset && offset <= ptr.range().end()),
72 ptr.range().len(), 149 ptr.range().len(),
73 ) 150 )
74 }) 151 })
75 .map(|(ptr, scope)| self.adjust(*ptr, *scope, offset)); 152 .map(|(ptr, scope)| self.adjust(ptr, *scope, offset));
76 153
77 generate(scope, move |&scope| self.scopes[scope].parent) 154 generate(scope, move |&scope| self.scopes.scopes[scope].parent)
78 } 155 }
79 // XXX: during completion, cursor might be outside of any particular 156 // XXX: during completion, cursor might be outside of any particular
80 // expression. Try to figure out the correct scope... 157 // expression. Try to figure out the correct scope...
81 fn adjust(&self, ptr: LocalSyntaxPtr, original_scope: ScopeId, offset: TextUnit) -> ScopeId { 158 fn adjust(&self, ptr: LocalSyntaxPtr, original_scope: ScopeId, offset: TextUnit) -> ScopeId {
82 let r = ptr.range(); 159 let r = ptr.range();
83 let child_scopes = self 160 let child_scopes = self
161 .scopes
84 .scope_for 162 .scope_for
85 .iter() 163 .iter()
164 .filter_map(|(id, scope)| Some((self.syntax_mapping.expr_syntax(*id)?, scope)))
86 .map(|(ptr, scope)| (ptr.range(), scope)) 165 .map(|(ptr, scope)| (ptr.range(), scope))
87 .filter(|(range, _)| range.start() <= offset && range.is_subrange(&r) && *range != r); 166 .filter(|(range, _)| range.start() <= offset && range.is_subrange(&r) && *range != r);
88 167
@@ -100,22 +179,27 @@ impl FnScopes {
100 .unwrap_or(original_scope) 179 .unwrap_or(original_scope)
101 } 180 }
102 181
103 pub fn resolve_local_name<'a>(&'a self, name_ref: ast::NameRef) -> Option<&'a ScopeEntry> { 182 pub fn resolve_local_name(&self, name_ref: ast::NameRef) -> Option<ScopeEntryWithSyntax> {
104 let mut shadowed = FxHashSet::default(); 183 let mut shadowed = FxHashSet::default();
105 let name = name_ref.as_name(); 184 let name = name_ref.as_name();
106 let ret = self 185 let ret = self
107 .scope_chain(name_ref.syntax()) 186 .scope_chain(name_ref.syntax())
108 .flat_map(|scope| self.entries(scope).iter()) 187 .flat_map(|scope| self.scopes.entries(scope).iter())
109 .filter(|entry| shadowed.insert(entry.name())) 188 .filter(|entry| shadowed.insert(entry.name()))
110 .filter(|entry| entry.name() == &name) 189 .filter(|entry| entry.name() == &name)
111 .nth(0); 190 .nth(0);
112 ret 191 ret.and_then(|entry| {
192 Some(ScopeEntryWithSyntax {
193 name: entry.name().clone(),
194 ptr: self.syntax_mapping.pat_syntax(entry.pat())?,
195 })
196 })
113 } 197 }
114 198
115 pub fn find_all_refs(&self, pat: ast::BindPat) -> Vec<ReferenceDescriptor> { 199 pub fn find_all_refs(&self, pat: ast::BindPat) -> Vec<ReferenceDescriptor> {
116 let fn_def = pat.syntax().ancestors().find_map(ast::FnDef::cast).unwrap(); 200 let fn_def = pat.syntax().ancestors().find_map(ast::FnDef::cast).unwrap();
117 let name_ptr = LocalSyntaxPtr::new(pat.syntax()); 201 let name_ptr = LocalSyntaxPtr::new(pat.syntax());
118 let refs: Vec<_> = fn_def 202 fn_def
119 .syntax() 203 .syntax()
120 .descendants() 204 .descendants()
121 .filter_map(ast::NameRef::cast) 205 .filter_map(ast::NameRef::cast)
@@ -127,203 +211,95 @@ impl FnScopes {
127 name: name_ref.syntax().text().to_string(), 211 name: name_ref.syntax().text().to_string(),
128 range: name_ref.syntax().range(), 212 range: name_ref.syntax().range(),
129 }) 213 })
130 .collect(); 214 .collect()
131
132 refs
133 } 215 }
134 216
135 fn root_scope(&mut self) -> ScopeId {
136 self.scopes.alloc(ScopeData {
137 parent: None,
138 entries: vec![],
139 })
140 }
141 fn new_scope(&mut self, parent: ScopeId) -> ScopeId {
142 self.scopes.alloc(ScopeData {
143 parent: Some(parent),
144 entries: vec![],
145 })
146 }
147 fn add_bindings(&mut self, scope: ScopeId, pat: ast::Pat) {
148 let entries = pat
149 .syntax()
150 .descendants()
151 .filter_map(ast::BindPat::cast)
152 .filter_map(ScopeEntry::new);
153 self.scopes[scope].entries.extend(entries);
154 }
155 fn add_params_bindings(&mut self, scope: ScopeId, params: Option<ast::ParamList>) {
156 params
157 .into_iter()
158 .flat_map(|it| it.params())
159 .filter_map(|it| it.pat())
160 .for_each(|it| self.add_bindings(scope, it));
161 }
162 fn set_scope(&mut self, node: SyntaxNodeRef, scope: ScopeId) {
163 self.scope_for.insert(LocalSyntaxPtr::new(node), scope);
164 }
165 fn scope_for(&self, node: SyntaxNodeRef) -> Option<ScopeId> { 217 fn scope_for(&self, node: SyntaxNodeRef) -> Option<ScopeId> {
166 node.ancestors() 218 node.ancestors()
167 .map(LocalSyntaxPtr::new) 219 .map(LocalSyntaxPtr::new)
168 .filter_map(|it| self.scope_for.get(&it).map(|&scope| scope)) 220 .filter_map(|ptr| self.syntax_mapping.syntax_expr(ptr))
221 .filter_map(|it| self.scopes.scope_for(it))
169 .next() 222 .next()
170 } 223 }
171} 224}
172 225
173impl ScopeEntry { 226impl ScopeEntry {
174 fn new(pat: ast::BindPat) -> Option<ScopeEntry> {
175 let name = pat.name()?.as_name();
176 let res = ScopeEntry {
177 name,
178 ptr: LocalSyntaxPtr::new(pat.syntax()),
179 };
180 Some(res)
181 }
182 pub fn name(&self) -> &Name { 227 pub fn name(&self) -> &Name {
183 &self.name 228 &self.name
184 } 229 }
185 pub fn ptr(&self) -> LocalSyntaxPtr { 230 pub fn pat(&self) -> PatId {
186 self.ptr 231 self.pat
187 } 232 }
188} 233}
189 234
190fn compute_block_scopes(block: ast::Block, scopes: &mut FnScopes, mut scope: ScopeId) { 235fn compute_block_scopes(
191 // A hack for completion :( 236 statements: &[Statement],
192 scopes.set_scope(block.syntax(), scope); 237 tail: Option<ExprId>,
193 for stmt in block.statements() { 238 body: &Body,
239 scopes: &mut FnScopes,
240 mut scope: ScopeId,
241) {
242 for stmt in statements {
194 match stmt { 243 match stmt {
195 ast::Stmt::LetStmt(stmt) => { 244 Statement::Let {
196 if let Some(expr) = stmt.initializer() { 245 pat, initializer, ..
197 scopes.set_scope(expr.syntax(), scope); 246 } => {
198 compute_expr_scopes(expr, scopes, scope); 247 if let Some(expr) = initializer {
248 scopes.set_scope(*expr, scope);
249 compute_expr_scopes(*expr, body, scopes, scope);
199 } 250 }
200 scope = scopes.new_scope(scope); 251 scope = scopes.new_scope(scope);
201 if let Some(pat) = stmt.pat() { 252 scopes.add_bindings(body, scope, *pat);
202 scopes.add_bindings(scope, pat);
203 }
204 } 253 }
205 ast::Stmt::ExprStmt(expr_stmt) => { 254 Statement::Expr(expr) => {
206 if let Some(expr) = expr_stmt.expr() { 255 scopes.set_scope(*expr, scope);
207 scopes.set_scope(expr.syntax(), scope); 256 compute_expr_scopes(*expr, body, scopes, scope);
208 compute_expr_scopes(expr, scopes, scope);
209 }
210 } 257 }
211 } 258 }
212 } 259 }
213 if let Some(expr) = block.expr() { 260 if let Some(expr) = tail {
214 scopes.set_scope(expr.syntax(), scope); 261 compute_expr_scopes(expr, body, scopes, scope);
215 compute_expr_scopes(expr, scopes, scope);
216 } 262 }
217} 263}
218 264
219fn compute_expr_scopes(expr: ast::Expr, scopes: &mut FnScopes, scope: ScopeId) { 265fn compute_expr_scopes(expr: ExprId, body: &Body, scopes: &mut FnScopes, scope: ScopeId) {
220 match expr { 266 scopes.set_scope(expr, scope);
221 ast::Expr::IfExpr(e) => { 267 match body.expr(expr) {
222 let cond_scope = e 268 Expr::Block { statements, tail } => {
223 .condition() 269 compute_block_scopes(&statements, *tail, body, scopes, scope);
224 .and_then(|cond| compute_cond_scopes(cond, scopes, scope));
225 if let Some(block) = e.then_branch() {
226 compute_block_scopes(block, scopes, cond_scope.unwrap_or(scope));
227 }
228 if let Some(block) = e.else_branch() {
229 compute_block_scopes(block, scopes, scope);
230 }
231 }
232 ast::Expr::BlockExpr(e) => {
233 if let Some(block) = e.block() {
234 compute_block_scopes(block, scopes, scope);
235 }
236 }
237 ast::Expr::LoopExpr(e) => {
238 if let Some(block) = e.loop_body() {
239 compute_block_scopes(block, scopes, scope);
240 }
241 }
242 ast::Expr::WhileExpr(e) => {
243 let cond_scope = e
244 .condition()
245 .and_then(|cond| compute_cond_scopes(cond, scopes, scope));
246 if let Some(block) = e.loop_body() {
247 compute_block_scopes(block, scopes, cond_scope.unwrap_or(scope));
248 }
249 } 270 }
250 ast::Expr::ForExpr(e) => { 271 Expr::For {
251 if let Some(expr) = e.iterable() { 272 iterable,
252 compute_expr_scopes(expr, scopes, scope); 273 pat,
253 } 274 body: body_expr,
254 let mut scope = scope; 275 } => {
255 if let Some(pat) = e.pat() { 276 compute_expr_scopes(*iterable, body, scopes, scope);
256 scope = scopes.new_scope(scope);
257 scopes.add_bindings(scope, pat);
258 }
259 if let Some(block) = e.loop_body() {
260 compute_block_scopes(block, scopes, scope);
261 }
262 }
263 ast::Expr::LambdaExpr(e) => {
264 let scope = scopes.new_scope(scope); 277 let scope = scopes.new_scope(scope);
265 scopes.add_params_bindings(scope, e.param_list()); 278 scopes.add_bindings(body, scope, *pat);
266 if let Some(body) = e.body() { 279 compute_expr_scopes(*body_expr, body, scopes, scope);
267 scopes.set_scope(body.syntax(), scope);
268 compute_expr_scopes(body, scopes, scope);
269 }
270 } 280 }
271 ast::Expr::CallExpr(e) => { 281 Expr::Lambda {
272 compute_call_scopes(e.expr(), e.arg_list(), scopes, scope); 282 args,
273 } 283 body: body_expr,
274 ast::Expr::MethodCallExpr(e) => { 284 ..
275 compute_call_scopes(e.expr(), e.arg_list(), scopes, scope); 285 } => {
286 let scope = scopes.new_scope(scope);
287 scopes.add_params_bindings(scope, &args);
288 compute_expr_scopes(*body_expr, body, scopes, scope);
276 } 289 }
277 ast::Expr::MatchExpr(e) => { 290 Expr::Match { expr, arms } => {
278 if let Some(expr) = e.expr() { 291 compute_expr_scopes(*expr, body, scopes, scope);
279 compute_expr_scopes(expr, scopes, scope); 292 for arm in arms {
280 }
281 for arm in e.match_arm_list().into_iter().flat_map(|it| it.arms()) {
282 let scope = scopes.new_scope(scope); 293 let scope = scopes.new_scope(scope);
283 for pat in arm.pats() { 294 for pat in &arm.pats {
284 scopes.add_bindings(scope, pat); 295 scopes.add_bindings(body, scope, *pat);
285 }
286 if let Some(expr) = arm.expr() {
287 compute_expr_scopes(expr, scopes, scope);
288 } 296 }
297 scopes.set_scope(arm.expr, scope);
298 compute_expr_scopes(arm.expr, body, scopes, scope);
289 } 299 }
290 } 300 }
291 _ => expr 301 e => e.walk_child_exprs(|e| compute_expr_scopes(e, body, scopes, scope)),
292 .syntax()
293 .children()
294 .filter_map(ast::Expr::cast)
295 .for_each(|expr| compute_expr_scopes(expr, scopes, scope)),
296 }; 302 };
297
298 fn compute_call_scopes(
299 receiver: Option<ast::Expr>,
300 arg_list: Option<ast::ArgList>,
301 scopes: &mut FnScopes,
302 scope: ScopeId,
303 ) {
304 arg_list
305 .into_iter()
306 .flat_map(|it| it.args())
307 .chain(receiver)
308 .for_each(|expr| compute_expr_scopes(expr, scopes, scope));
309 }
310
311 fn compute_cond_scopes(
312 cond: ast::Condition,
313 scopes: &mut FnScopes,
314 scope: ScopeId,
315 ) -> Option<ScopeId> {
316 if let Some(expr) = cond.expr() {
317 compute_expr_scopes(expr, scopes, scope);
318 }
319 if let Some(pat) = cond.pat() {
320 let s = scopes.new_scope(scope);
321 scopes.add_bindings(s, pat);
322 Some(s)
323 } else {
324 None
325 }
326 }
327} 303}
328 304
329#[derive(Debug)] 305#[derive(Debug)]
@@ -338,6 +314,8 @@ mod tests {
338 use ra_syntax::SourceFileNode; 314 use ra_syntax::SourceFileNode;
339 use test_utils::{extract_offset, assert_eq_text}; 315 use test_utils::{extract_offset, assert_eq_text};
340 316
317 use crate::expr;
318
341 use super::*; 319 use super::*;
342 320
343 fn do_check(code: &str, expected: &[&str]) { 321 fn do_check(code: &str, expected: &[&str]) {
@@ -353,15 +331,20 @@ mod tests {
353 let file = SourceFileNode::parse(&code); 331 let file = SourceFileNode::parse(&code);
354 let marker: ast::PathExpr = find_node_at_offset(file.syntax(), off).unwrap(); 332 let marker: ast::PathExpr = find_node_at_offset(file.syntax(), off).unwrap();
355 let fn_def: ast::FnDef = find_node_at_offset(file.syntax(), off).unwrap(); 333 let fn_def: ast::FnDef = find_node_at_offset(file.syntax(), off).unwrap();
356 let scopes = FnScopes::new(fn_def); 334 let body_hir = expr::collect_fn_body_syntax(fn_def);
335 let scopes = FnScopes::new(Arc::clone(body_hir.body()));
336 let scopes = ScopesWithSyntaxMapping {
337 scopes: Arc::new(scopes),
338 syntax_mapping: Arc::new(body_hir),
339 };
357 let actual = scopes 340 let actual = scopes
358 .scope_chain(marker.syntax()) 341 .scope_chain(marker.syntax())
359 .flat_map(|scope| scopes.entries(scope)) 342 .flat_map(|scope| scopes.scopes.entries(scope))
360 .map(|it| it.name().to_string()) 343 .map(|it| it.name().to_string())
361 .collect::<Vec<_>>() 344 .collect::<Vec<_>>()
362 .join("\n"); 345 .join("\n");
363 let expected = expected.join("\n"); 346 let expected = expected.join("\n");
364 assert_eq_text!(&actual, &expected); 347 assert_eq_text!(&expected, &actual);
365 } 348 }
366 349
367 #[test] 350 #[test]
@@ -389,7 +372,7 @@ mod tests {
389 } 372 }
390 373
391 #[test] 374 #[test]
392 fn test_metod_call_scope() { 375 fn test_method_call_scope() {
393 do_check( 376 do_check(
394 r" 377 r"
395 fn quux() { 378 fn quux() {
@@ -445,10 +428,15 @@ mod tests {
445 let fn_def: ast::FnDef = find_node_at_offset(file.syntax(), off).unwrap(); 428 let fn_def: ast::FnDef = find_node_at_offset(file.syntax(), off).unwrap();
446 let name_ref: ast::NameRef = find_node_at_offset(file.syntax(), off).unwrap(); 429 let name_ref: ast::NameRef = find_node_at_offset(file.syntax(), off).unwrap();
447 430
448 let scopes = FnScopes::new(fn_def); 431 let body_hir = expr::collect_fn_body_syntax(fn_def);
432 let scopes = FnScopes::new(Arc::clone(body_hir.body()));
433 let scopes = ScopesWithSyntaxMapping {
434 scopes: Arc::new(scopes),
435 syntax_mapping: Arc::new(body_hir),
436 };
449 437
450 let local_name_entry = scopes.resolve_local_name(name_ref).unwrap(); 438 let local_name_entry = scopes.resolve_local_name(name_ref).unwrap();
451 let local_name = local_name_entry.ptr().resolve(&file); 439 let local_name = local_name_entry.ptr();
452 let expected_name = 440 let expected_name =
453 find_node_at_offset::<ast::Name>(file.syntax(), expected_offset.into()).unwrap(); 441 find_node_at_offset::<ast::Name>(file.syntax(), expected_offset.into()).unwrap();
454 assert_eq!(local_name.range(), expected_name.syntax().range()); 442 assert_eq!(local_name.range(), expected_name.syntax().range());
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